Only in linux-2.6.12.6: .config
diff -ur linux-2.6.12.6.orig/fs/nfs/inode.c linux-2.6.12.6/fs/nfs/inode.c
--- linux-2.6.12.6.orig/fs/nfs/inode.c	2005-08-29 18:55:27.000000000 +0200
+++ linux-2.6.12.6/fs/nfs/inode.c	2005-08-31 16:00:46.195890505 +0200
@@ -1403,8 +1403,10 @@
 	init_nfsv4_state(server);
 
 	if (data->version != NFS_MOUNT_VERSION) {
+		/*
 		printk("nfs warning: mount version %s than kernel\n",
 			data->version < NFS_MOUNT_VERSION ? "older" : "newer");
+		*/
 		if (data->version < 2)
 			data->namlen = 0;
 		if (data->version < 3)
@@ -1742,10 +1744,12 @@
 	/* Zero out the NFS state stuff */
 	init_nfsv4_state(server);
 
+	/*
 	if (data->version != NFS4_MOUNT_VERSION) {
 		printk("nfs warning: mount version %s than kernel\n",
 			data->version < NFS4_MOUNT_VERSION ? "older" : "newer");
 	}
+	*/
 
 	p = nfs_copy_user_string(NULL, &data->hostname, 256);
 	if (IS_ERR(p))
diff -ur linux-2.6.12.6.orig/include/net/tcp.h linux-2.6.12.6/include/net/tcp.h
--- linux-2.6.12.6.orig/include/net/tcp.h	2005-08-29 18:55:27.000000000 +0200
+++ linux-2.6.12.6/include/net/tcp.h	2005-08-31 16:00:14.456239003 +0200
@@ -18,8 +18,10 @@
 #ifndef _TCP_H
 #define _TCP_H
 
+/*
 #define TCP_DEBUG 1
 #define FASTRETRANS_DEBUG 1
+*/
 
 /* Cancel timers, when they are not required. */
 #undef TCP_CLEAR_TIMERS